Vadim Makhorov and Vitaliy Raskalov scaled the Shanghai Tower last year and internet went crazy with 41 million views.
The notoriety inspired them to attempt an equally crazy climb of the Ping An Finance Centre in Shenzhen, China. When complete it will be the tallest building in China and second tallest building in the world (antenna spire 660 m/2,165 ft; roof 555.1 m/1,821 ft).